Cognomen ไพโรจน์พิพัฒน์ (ไพโรจน์พิพัฒน์ 
) , in the world, is a very rare family name. The last name ไพโรจน์พิพัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ไพโรจน์พิพัฒน์ | Thailand |